Which versions of the rom sets does the mame cores use?
load the core up and it should tell you which version of MAME it is, either in the bottom-left corner of the screen or in information > core information.
2000 = 0.37b5 2003 = 0.087 2010 = 0.139mame 2014 = 0.157 git = current
Thanks i just noticed just now